(Original post by lcarter98)
Is there any leeway on the measuring the artery question? I see some of you got 15mm - I counted 14 so I got 116 um as my answer. Obviously it's only 2 marks but it'd be annoying if I lost those.

The answer for 14mm was 117 because it was to the nearest nm and the answer was 116.6 so you round it up

what did everyone write for the q about how water is taken up by the mosses root cells... because it has no xylem due to no VB... so the whole transpiration thing wouldent be right surely ? im so confused.